一种新型解耦三相交错并联boost控制策略  

A novel decoupled three-phase staggered boost control strategy is proposed

作　　者：郑威 谢明 崔傲凡 Zheng Wei;Xie Ming;Cui Aofan(school of mechanical engineering,Shanghai university of science and technology,Shanghai 200093,China)

机构地区：[1]上海理工大学机械学院,上海200093

出　　处：《电子测量技术》2020年第6期63-68,共6页Electronic Measurement Technology

摘　　要：现如今,耦合电感越来越多的被用于电力电子的线路中,与分立电感相比不仅能减小相电流的纹波,而且能大大降低电力电子产品的体积。就是针对耦合电感的三相交错并联boost变换器,根据小信号建模建立起其动态下的等效数学模型,在传统双闭环的基础上提出一种适合该变换器的一种新型解耦的双闭环控制策略,并对系统进行PID校正提高变换器的性能,最后利用MATLAB/SIMULINK仿真对比相同电感下耦合电感和分离电感三相交错并联boost变换器参数,前者的三相电感电流的纹波是后者的0.25倍,大大减小了相电流的纹波,并在0.1 s时进行负载突变的仿真实验,三相电感电流以及输出电压都能在短时间完成响应,并能稳定输出,该新型的解耦双闭环控制策略提高了系统的稳定性,快速性和抗干扰能力。Nowadays,more and more coupling inductors are used in power electronic circuits.Compared with discrete inductors,they can not only reduce the ripple of phase current,but also greatly reduce the volume of power electronic products.It is in view of the three-phase alternating parallel Boost converter coupled inductors,according to the small signal model set up the equivalent mathematical model under the dynamic,on the basis of traditional double closed-loop put forward a kind of suitable for decoupling of the converter is a new type of double closed loop control strategy,and the system PID correction improve the performance of the converter is verified using MATLAB/SIMULINK simulation under the same inductance coupling inductance and the separation of inductance staggered parallel three-phase Boost converter parameters,three-phase inductor current ripple of the former is 0.25 times that of the latter,greatly reduce the current ripple,In addition,the simulation experiment of load mutation was carried out at 0.1 second.Both the three-phase inductance current and output voltage could complete the response in a short time and stabilize the output.The new decoupling double closed-loop control strategy improved the stability,rapidity and anti-interference ability of the system.

关 键 词：小信号建模 PID校正 双闭环控制 

分 类 号：TP2[自动化与计算机技术—检测技术与自动化装置]